These add some nice airy mids and highs, especially to single-driver speakers. (I prefer these to supertweeters.) As you can see, I have them mounted in some very DIY-ish baffles. Not sure of the manufacturer. Fairly heavy, probably 4-5 lbs each. Ha high-pass filter with a Mundorf 4.7uF zinc cap and low-noise resistor on each one.
$120 shipping included.
